LA70.2

ICD-11 MMS 2026-01

Choanal atresia

Description

Any condition in neonates, caused by failure of the nose to correctly develop during the antenatal period. This condition is characterised by narrowing or blockage of the nasal airway by tissue. This condition may also present with chest retraction unless child is breathing through mouth or crying, difficulty breathing, cyanosis, and inability to nurse and breathe at same time.

Index terms

  • Choanal atresia
  • atresia of nares
  • choanal fusion
Show allHide
  • congenital stenosis of choanae
  • congenital stenosis of nares
  • nasal atresia NOS
  • Choanal atresia, unilateral
  • Choanal atresia, bilateral
  • Congenital atresia of anterior nares
  • anterior atresia of nares
  • anterior congenital stenosis of nares
  • Congenital atresia of posterior nares
  • posterior atresia of nares
  • posterior congenital stenosis of nares

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LA70.0 – Arrhinia
  • LA70.1 – Bifid nose
  • LA70.3 – Congenital perforated nasal septum
  • LA70.Y – Other specified structural developmental anomalies of the nose or cavum
  • LA70.Z – Structural developmental anomalies of the nose or cavum, unspecified

Foundation entity

Choanal atresia – http://id.who.int/icd/entity/2099486655

Part of: LA70: Structural developmental anomalies of the nose or cavum › 20: Developmental anomalies